Skip to content

<typeinfo>: Error with import std; and typeid(T).name() #3677

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
Stephan T. Lavavej (StephanTLavavej) merged 3 commits into from
May 5, 2023
Merged

<typeinfo>: Error with import std; and typeid(T).name() #3677

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
33d9e4d
Export global type_info.
StephanTLavavej Apr 28, 2023
438ea79
Test `typeid(T).name()`.
StephanTLavavej Apr 28, 2023
3d3e09c
We usually mention `extern "C++"` in-line here.
StephanTLavavej Apr 28, 2023
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 2 additions & 0 deletions stl/inc/typeinfo
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,8 @@ _STL_DISABLE_CLANG_WARNINGS

#include <vcruntime_typeinfo.h>

_EXPORT_STD extern "C++" class type_info; // for typeid, MSVC looks for type_info in the global namespace

_STD_BEGIN

// size in pointers of std::function and std::any (roughly 3 pointers larger than std::string when building debug)
Expand Down
2 changes: 2 additions & 0 deletions tests/std/include/test_header_units_and_modules.hpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -937,6 +937,8 @@ void test_typeinfo() {
const type_info& t3 = typeid(double);
assert(t1 == t2);
assert(t1 != t3);

assert(typeid(double).name() == "double"sv); // also test DevCom-10349749
}

void test_unordered_map() {
Expand Down